@skunky - if you started having digital in your studio, stick to it. Analog system has a totally different characteristics, maintenance and logistics-wise. Also, you would need a bigger control room, lots of air conditioning, etc., etc., to sustain these machines. Nowadays, digital is not far from achieving analog sound, plus, nobody cares anymore, with iPods and MP3s. you are better off investing your resources in other stuff like good mics, pre-amps, new digital stuff. Analog machine parts are hard to come by. Instead of them getting cheaper because of age, they are getting more expensive. Even 2" tape has gone more expensive.
@abyss - Studers are almost hand crafted. They are built like tanks, thus they stand the hands of time. I have 2 track Revoxes and a Studer 807 2 track mastering recorder and they still work good until now. The sounds they put out are still pristine.
FWIW